  augment - augmented plant
  bstap - hankel approximant
  ccontrg - central H-infinity controller
  colinout - inner-outer factorization
  copfac - right coprime factorization
  dcf - double coprime factorization
  des2ss - descriptor to state-space
  dhinf - H_infinity design of discrete-time systems
  dhnorm - discrete H-infinity norm
  dtsi - stable anti-stable decomposition
  fourplan - augmented plant to four plants
  fspecg - stable factorization
  fstabst - Youla's parametrization
  gamitg - H-infinity gamma iterations
  gcare - control Riccati equation
  gfare - filter Riccati equation
  gtild - tilde operation
  h2norm - H2 norm
  h_cl - closed loop matrix
  h_inf - H-infinity (central) controller
  h_inf_st - static H_infinity problem
  h_norm - H-infinity norm
  hankelsv - Hankel singular values
  hinf - H_infinity design of continuous-time systems
  lcf - normalized coprime factorization
  leqr - H-infinity LQ gain (full state)
  lft - linear fractional transformation
  linf - infinity norm
  linfn - infinity norm
  lqg_ltr - LQG with loop transform recovery
  macglov - Mac Farlane Glover problem
  mucomp - mu (structured singular value) calculation
  nehari - Nehari approximant
  parrot - Parrot's problem
  ric_desc - Riccati equation
  riccati - Riccati equation
  rowinout - inner-outer factorization
  sensi - sensitivity functions
  tf2des - transfer function to descriptor